<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Flex(骰子)</title>
    <link rel="stylesheet" href="flex.css">
</head>
<body>
    <!--1-->
    <div class="box box1">
        <div class="dot"></div>
    </div>
    <!--2-->
    <div class="box box2">
        <div class="dot"></div>
        <div class="dot"></div>
    </div>
    <!--3-->
    <div class="box box3">
        <div class="dot dot3-1"></div>
        <div class="dot"></div>
        <div class="dot dot3-3"></div>
    </div>
    <!--4-->
    <div class="box box4">
        <div class="column">
            <div class="dot"></div>
            <div class="dot"></div>
        </div>
        <div class="column">
            <div class="dot"></div>
            <div class="dot"></div>
        </div>   
    </div>
    <!--5-->
    <div class="box box5">
            <div class="column">
                <div class="dot"></div>
                <div class="dot"></div>
            </div>
            <div class="column-5">
                <div class="dot"></div>
            </div> 
            <div class="column">
                <div class="dot"></div>
                <div class="dot"></div>
            </div>   
        </div>
    <!--6-->
    <div class="box box6">
            <div class="column">
                <div class="dot"></div>
                <div class="dot"></div>
                <div class="dot"></div>
            </div>
            <div class="column">
                <div class="dot"></div>
                <div class="dot"></div>
                <div class="dot"></div>
            </div>   
        </div>
</body>
</html>